Autoimmune diseases such as asthma and lupus are typically more prevalent in:
a. Poor countries with a lot of infectious disease, compared to wealthy countries.
b. Wealthy countries with little infectious disease, compared to poor countries.
c. Countries with warming climates, compared to counties with stable climates.
d. Countries with high prevalence of harmful algae blooms.
d. Countries with a lot of Aedes mosquitoes.